The 598s are good in terms of comfort, but the plasticiness of the 598s always concerned me as a potential failure point. For me, the X1s earcups are more comfortable. The DT880s are a bit too head grippy and the top portion that touches your head is less comfortable on me than the X1s.

I'm looking for a replacement for some Fidelio X1s that my dog knocked off their hook (one of the two pins on the right cup snapped, so it's just a matter of time). I have a DT880 and a Sennheiser 598, but don't find them as comfortable as the X1s. I use my headphones 8 hours a day/5+...

I have an E17K Alpen 2 and just received the K5.  I have an older dock + E7 as well.  I tried to do a swap today of the old dock + E7 with the K5+E17K.  I use the FIIO devices primarily as a head phone amp for a computer.  Windows 10 does not seem to recognize it being plugged in.    Any...